CVE-2026-55689 OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset

OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's OIDC authenticator skipped JWT audience validation when authn.method was set to oidc, authn.oidc.issuer was configured, and authn.oidc.audience was not set, allowing a token minted for an unrelated...

OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset

Description OpenFGA's OIDC authenticator skipped JWT audience aud validation when no audience was configured. In deployments where one identity provider issues tokens for multiple services, a token minted for an unrelated service could authenticate to OpenFGA. Preconditions This applies if the...